Pulp-beating engine.



F. J. MARSHALL.

PULP BEATING ENGINE. APPLICATION FILED JUNE 20, 1910. 9 4, 30, Patented Feb. 21, 1911.

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F. J. MARSHALL.

PULP BBATING ENGINE.

APPLICATION FILED JUNE 20, 1910.

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PULP-BEATING ENGINE.

Specification of Letters Patent.

Patented Feb. 21, 1911.

Application filed June 20, 1910. Serial No. 567,901.

To all whom it may concern:

Be it known that I, FRANK J. MARSHALL, a citizen of the United States, residing at Easton, in the county of Northampton and State of Pennsylvania, have invented a new and useful Improvement in Pulp-Beating Engines; and I do hereby declare the following,,when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1 a view partially in section of a pulp beating engine constructed in accord ance with my invention. Fig. 2 a sectional view on the line ab of Fig. 1 on an enlarged scale.

This invention relates to an improvement in pulp beating engines of the conical case type.

The pulp beating engines as previously constructed comprised a conical case containing a conical plug and a disk having blades co-acting with a bed-plate also having cutters. Means were provided for adjusting the plug and rotary disk, but in some cases it is desirable to adjust the relative position of these parts independent of each other; and the object of this invention is to provide means for adjusting the cone with relation to the plug independent of the means for adjusting the disk with the stationary bed-plate; and the invention consists in the construction hereinafter described and particularly recited in the claims.

As shown in the drawings, I employ a conical casing 2 through which a driving shaft 3 extends, and on this driving shaft 3 is a conical plug 4. The conical casing 2 is provided with ribs 5 on opposite sides which slide in bearings 6 so that the casing is longitudinally movable. The outer end of the casing 2 is built up to form an annular bearing 7 which is externally threaded to receive a threaded collar 8. Sliding over the bearing end 7 of the casing is a ring 9 exter' nally-threaded and carrying at its outer end the bed-plate 10. Mounted on the ring is a collar 11 corresponding to the collar 8. The collar 8 is coupled with the ring 9, and the ring 9 is coupled with the bed-plate 10, and worm-screws 12 and 13 are arranged for moving these rings so that the casing may be drawn into or moved out of the ring, and

the bed-plate moved back or forth on the ring as required. As herein shown, the worm-screw 12 is mounted in arms 14 projecting outward from a bracket 15 secured to a stationary ring 16. This stationary ring is supported by a truss-rod 17 which engages with the upper end of the bracket 15 and a post 18 rising from the bearing 19 which supports the outer end of the shaft 3, while the screw 18 is supported by the bedplate 10. l

Mounted on the shaft and turned thereby is a disk 20 carrying blades 21 which co-act with cutters 22 on the bed-plate. This shaft is longitudinally movable by means of a screw 23. By moving the screw 23,tho plug 4 and the disk 20 may be moved together, but with my improved arrangement the worm 13 may be turned to adjust the bedplate independent of the casing, and the worm 12 may be turned to adjust the casing on the plug without moving the bed-plate. This adjustment is made between the bearings and so does not interfere with the proper support of the engine.

I claim 1. In a pulp beating engine, the combination with a longitudinally movable conical casing, a shaft passing through the same, a plug on said shaft within said casing, 21 ring around the outer end of the casing, coupling between the casing and ring, a bedplate' mounted on said ring, and means for adjusting the bed-plate on the ring.

2. A pulp beating engine comprising alongitudinally movable conical casing, a ring around the outer end of the casing, coupling between the ring and casing, and means for adjusting the casing with relation to the ring, a bed-plate mounted on said ring and carrying cutters, coupling between the ring and bed-plate, and means for moving the bed-plate with relation to the ring, a shaft extending through said casing, a plug on said shaft in the casing, and a disk on the shaft carrying blades cooperating with the cutters on the bedplate, and means for adjusting said shaft.

In testimony whereof, I have signed this specification in the presence of two subscril ing witnesses.

FRANK J. MARSHALL.

Witnesses:

MAURICE CLEMENs, JOHN H. PEARSON. 

